The game is Blade of Darkness. This is the only game I've played with nGlide. If I play it through D3D the frame rate is properly capped at 60fps as I have set it in Radeon Settings. But playing through 3dfx Voodoo 1-2 the frame rate is 400+. The odd thing is, it plays a tad bit choppy. You'd think a game running at 400+ would be smoother than one at 60, but it's not.

Cap it then at 60 by setting Vertical synchronization to default or "on" in Radeon settings; check global and game profile to be sure it's not disabled. nGlide configurator also should be set to Vsync=on.